This project is part of the @thi.ng/umbrella monorepo.

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HDPI canvas adapter / styling utility.

Attempts to determine display pixel density via window.devicePixelRatio (default 1.0) and resizes canvas accordingly. I.e. If DPR != 1.0, attaches explicit width and height CSS properties to force canvas to given pixel size, and resizes canvas pixel buffer itself based on DPR (e.g. 2x size).

STABLE - used in production

yarn add @thi.ng/adapt-dpi

// ES module
<script type="module" src="https://unpkg.com/@thi.ng/adapt-dpi?module" crossorigin></script>

// UMD
<script src="https://unpkg.com/@thi.ng/adapt-dpi/lib/index.umd.js" crossorigin></script>

Package sizes (gzipped, pre-treeshake): ESM: 146 bytes / CJS: 193 bytes / UMD: 311 bytes

None

Several demos in this repo's /examples directory are using this package.

A selection:

Screenshot	Description	Live demo	Source
	Entity Component System w/ 100k 3D particles	Demo	Source
	WebGL cube maps with async texture loading	Demo	Source
	WebGL instancing, animated grid	Demo	Source
	WebGL MSDF text rendering & particle system	Demo	Source

Generated API docs

import { adaptDPI } from "@thi.ng/adapt-dpi";

const canvas = document.createElement("canvas");

adaptDPI(canvas, 640, 480);

Karsten Schmidt

© 2015 - 2020 Karsten Schmidt // Apache Software License 2.0